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CISA KEV · ACTIVELY EXPLOITED
CRITICAL severity

CVE-2011-3544 — Red Hat

CRITICAL

CVE-2011-3544 is a critical-severity (CVSS 9.8) CWE-284 vulnerability. It is in CISA's Known Exploited Vulnerabilities catalog (added 2022-03-03) — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.

Unspecified vulnerability in the Java Runtime Environment component in Oracle Java SE JDK and JRE 7 and 6 Update 27 and earlier allows remote untrusted Java Web Start applications and…

Published
Updated
Affected
6 products
Patched
See advisory
Exploits
3 known
Exploitation data as of Oct 26, 2026 · OSV.dev, NVD, CISA KEV, FIRST.org (EPSS)

Exploitation Status

Actively exploited in the wild

  • Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2022-03-03. Federal agencies were required to remediate by 2022-03-24.
  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2011-3544.

EPSS Exploitation Probability

via FIRST.org ↗
96.7%probability of exploitation in next 30 days
Very High Risk-0.06%
Lower risk than most CVEs100th percentile — riskier than 100% of all scored CVEsHighest risk
91.3%93.5%95.7%98.0%92.6%96.7%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2011-3544 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).

Where this sits among everything scored

Of 396,257 CVEs with a current EPSS score, this one falls in the ≥ 90% band (highlighted). Counts from FIRST.org, log-scaled.

Description

Unspecified vulnerability in the Java Runtime Environment component in Oracle Java SE JDK and JRE 7 and 6 Update 27 and earlier allows remote untrusted Java Web Start applications and untrusted Java applets to affect confidentiality, integrity, and availability via unknown vectors related to Scripting.

Affected Products

6 products · 98 configurations
OS
ubuntu linuxcanonical
4 versions
10.0410.1011.0411.10
Application
jdkoracle
< 1.6.0
2 versions
1.6.01.7.0
Application
jreoracle
< 1.6.0
2 versions
1.6.01.7.0
Application
satellite with embedded oracleredhat
1 version
5.4
OS
linux enterprise javasuse
1 version
10
OS
linux enterprise serversuse
1 version
10
Exploits & PoCs
3

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-18171remotemultiple✓ Verified

Java Applet Rhino Script Engine - Remote Code Execution (Metasploit)

by Metasploit · Nov 30, 2011

Detection & mitigation playbook

Vulnerability
  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    No fixed release is recorded for CVE-2011-3544 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatCritical
ProductFixed inAdvisory
Extras for RHEL 4java-1.6.0-sun-1:1.6.0.29-1jpp.1.el4RHSA-2011:1384
Extras for RHEL 4java-1.6.0-ibm-1:1.6.0.10.0-1jpp.2.el4RHSA-2012:0034
Red Hat Enterprise Linux 5java-1.6.0-openjdk-1:1.6.0.0-1.23.1.9.10.el5_7RHSA-2011:1380
Red Hat Network Satellite Server v 5.4java-1.6.0-ibm-1:1.6.0.14.0-1jpp.1.el5_9RHSA-2013:1455
Supplementary for Red Hat Enterprise Linux 6java-1.7.0-ibm-1:1.7.0.3.0-1jpp.2.el6_3RHSA-2012:1467

Frequently Asked Questions

Unspecified vulnerability in the Java Runtime Environment component in Oracle Java SE JDK and JRE 7 and 6 Update 27 and earlier allows remote untrusted Java Web Start applications and untrusted Java applets to affect confidentiality, integrity, and availability via unknown vectors related to Scripting.
O3 Security · Impact-Aware SCA

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CVE-2011-3544: Red Hat Improper Access Control (KEV)